/*************************************************************************************
*
* Library: QEXT
*
* Copyright (C) 2021 ChengXueWen. Contact: 1398831004@qq.com
* Copyright (C) 2012 Tadej Novak <tadej@tano.si>
*
* License: MIT License
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*************************************************************************************/

#ifndef _QEXTVLCVIDEODELEGATE_H
#define _QEXTVLCVIDEODELEGATE_H

#include <qextVLCGlobal.h>

#include <QtCore/QObject>
#include <QtGui/qwindowdefs.h>

class QEXTVLCMediaPlayer;

/*!
    \class QEXTVLCVideoDelegate qextVLCVideoDelegate.h
    \ingroup QEXTVLC
    \brief Video delegate

    This is a helper class, to separate core from display.
*/
class QEXT_VLC_API QEXTVLCVideoDelegate
{
public:
    /*!
        \brief QEXTVLCVideoDelegate constructor
    */
    QEXTVLCVideoDelegate() {}

    /*!
        \brief QEXTVLCVideoDelegate destructor
    */
    virtual ~QEXTVLCVideoDelegate() {}

    /*!
        \brief Request new video frame.

        Request new video frame and its widget ID to set it in the instance.
        \return widget ID (WId)
        \sa QEXTVLCMediaPlayer::QEXTVLCMediaPlayer()
    */
    virtual WId request() = 0;

    /*!
        \brief Release current video frame.
    */
    virtual void release() = 0;
};

#endif // _QEXTVLCVIDEODELEGATE_H
